0.8.1 excludes armv6 from RC3 testing

This is post testing RC3 on the RPi. I didn't test every state of every app (and many require a webcam) but made sure they at least compiled and ran.

This removes the following
fileBufferLoadingCSVExample - requires system open dialog 
shaderExample - needs shader troubleshooting/nothing displays 
systemSpeakExample - N/A on platform